import java.util.Scanner;

public class _t {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        while(scan.hasNextInt()) {
            int n = scan.nextInt();

            for(int i = 0;i < n;i++) {
                for(int j = 0;j < n;j++) {
                    if(i == j) {
                        System.out.print("*");
                    }else if( i+j+1 == n) {
                        System.out.print("*");
                    }else{
                        System.out.print(" ");
                    }
                }
                System.out.println();
            }
        }
    }
}

